Walkera V200D01/D02 Thread (250 Size)

[jorrick]

My d02 has done that since it was new

That's not a good thing. Whenever i got into trouble and had to chop the throttle the motor shut down immediately,but the rotors would still spin for a couple of seconds to wind down. In your case you would have to shut the heli down 4 seconds before the rotor stops spinning making it very difficult to save main gears,blades.That puts a whole new learning curve.
Its still not normal.

U think?   

I think that the gyro is the one that causes the problem. When the heli tips over the gyro lets the motor spin like crazy trying to level the heli, because offcourse it doesn't know its laying on the ground.
But it also stripes the main gear so the main motor also gives power while its on the ground.

Let them try out while holding in hand with some pitch and while cut the pitch turn it on its side, u will notice the tail staring to spin up like crazy because it wants to level en keeps doing that after the pitch it set to zero.

[flyingdeutschman]

Are you talking about the main motor or The tail motor? And when you say "pitch". Do you mean throttle?
The main motor has nothing to do with the 3 way gyro. All the 3 way controlls is the ail servo,pitch servo, and on the D02 model, the tail motor. Even though it is the tail motor, It should not be doing that with the throttle stick shut down.

[jorrick]

Are you talking about the main motor or The tail motor? And when you say "pitch". Do you mean throttle?
The main motor has nothing to do with the 3 way gyro. All the 3 way controlls is the ail servo,pitch servo, and on the D02 model, the tail motor. Even though it is the tail motor, It should not be doing that with the throttle stick shut down.

Yes im also talking about the main gear cos where else do the gear striping on the main gear come from? I also have pitch at zero way before the heli even touches the ground. And well about the tail gear, i see them literally turing a few seconds when its on the ground, ill make a movie when i have some time...

[cobieg]

Hey everyone, I am new to this forum and really liked Mark's videos, they are very informative, but I have a big problem.
 I just received my V200D02. The first thing I noticed was the swash was not level. had to shorten elevator rod 3 turns. Tried to fly, but is goes backward on lift off. Thinking that the due to the gyro, the swash must have been set correctly from the factory, so I set it back. Tried to fly again, but at lift off it took off at about 10 o'clock. tried to correct, came in a little hard, ( crashed my 120 Sr much harder than this ) front battery box support is missing and main gear stripped. When I set the swash, I didn't try the throttle on the table, just aileron and elevator. When I give it throttle, the swash moves elevator forward and aileron left to about 10 o'clock. It does this with the motors unplugged as well. Do I need a gyro adjustment, or is there possible something wrong with the receiver ? Should I adjust the swash to compensate for this as trim adjustment on tx did nothing to help ? I could sure use some help.

[papascotimini]

  to the forum cobieg 

I don't have this heli and I can't be of much help, but I'm sure someone will chime in soon and help you out 

Happy Flying

Papa

[cobieg]

Papa, thanks for the warm welcome. I adjusted the swash so that when the radio binds and the servos do there magic, the swash dosent move when the throttle is active. I also turned up ele. and aiel. gyros a bit. also changed out the main gear. will try again as soon as the wind dies down.

[sjschultz]

Hey everyone, I am new to this forum and really liked Mark's videos, they are very informative, but I have a big problem.
 I just received my V200D02. The first thing I noticed was the swash was not level. had to shorten elevator rod 3 turns. Tried to fly, but is goes backward on lift off. Thinking that the due to the gyro, the swash must have been set correctly from the factory, so I set it back. Tried to fly again, but at lift off it took off at about 10 o'clock. tried to correct, came in a little hard, ( crashed my 120 Sr much harder than this ) front battery box support is missing and main gear stripped. When I set the swash, I didn't try the throttle on the table, just aileron and elevator. When I give it throttle, the swash moves elevator forward and aileron left to about 10 o'clock. It does this with the motors unplugged as well. Do I need a gyro adjustment, or is there possible something wrong with the receiver ? Should I adjust the swash to compensate for this as trim adjustment on tx did nothing to help ? I could sure use some help.

Welcome Cobieg 

I have 2x V200D02 Heli's and I have never needed to adjust the swashplate on either of them.
If you have shortened the Elevator Link, you have actually given it backward pitch which is why you got the result from your 1st attempt.
It seems you realised this right away though and corrected the mistake, but then run into other problems.

With the V200, you need to get it up off the ground fairly quick and into clean air (no rotor wash effect), the 3in1 Gyro will then kick in and get the balance going.
If you let it sit on the ground with high RPM, the Heli will tend to roll over in a random direction and take off where you don't want it to.

Gyro settings .. This will come down to your own preferences and how much 'twitch or roll' you get, but I use:
Tail 50% . Elev 65% . Aile 65% . Ext 100%
This gives me good stable indoor flight with no twitching, however when I go outdoors I turn the Elev and Aile back to 50% so it doesn't react to the breeze as much.

A few things "Must Do" with this Heli ..
1. Make sure it is on a flat/level surface when you plug the battery in.
2. Do Not move or bump it while the Gyro initializes.
3. Get it up fast so the Gyro isn't getting thrown around by ground effect.
4. Always land before making any Trim adjustments.
5. Have plenty of spare Gears / Blades on hand until you can fly it 

Good luck 

[cobieg]

sjschultz, thanks for the warm welcome. When I took heli out of the box, the swash was sitting forward, that was why I shortened the rod. It still sits forward a little now, but not like before. I will have to test fly first. The problem was that when throttle was applied, the swash would move forward and left, thus making the heli move forward and left very fast. I fly my 120 sr fast up to get out of ground effect as I also tried with this one. I tried to compensate with right aileron and took a hard landing. After changing the main gear, I shortened the aileron rod to compensate and turned up aileron and elevator gyro to about 60 and ext. to about 90. the swash does not move when throttle is applied now. will test fly when wind dies down.

[cobieg]

Well, with only 1 spare main gear left I purchased the motor with pinion and main gear for the GT 5889 to mod. my v200d02.
I also got everything to do the dd tail mod. all for $30.72. Mabey some day I can crash without stripping gears.
also did the trex 250 skid mod to my 120 sr today. Looks good and flys great.

[ROUNDMAN54]

Hey everyone, I am new to this forum and really liked Mark's videos, they are very informative, but I have a big problem.
 I just received my V200D02. The first thing I noticed was the swash was not level. had to shorten elevator rod 3 turns. Tried to fly, but is goes backward on lift off. Thinking that the due to the gyro, the swash must have been set correctly from the factory, so I set it back. Tried to fly again, but at lift off it took off at about 10 o'clock. tried to correct, came in a little hard, ( crashed my 120 Sr much harder than this ) front battery box support is missing and main gear stripped. When I set the swash, I didn't try the throttle on the table, just aileron and elevator. When I give it throttle, the swash moves elevator forward and aileron left to about 10 o'clock. It does this with the motors unplugged as well. Do I need a gyro adjustment, or is there possible something wrong with the receiver ? Should I adjust the swash to compensate for this as trim adjustment on tx did nothing to help ? I could sure use some help.

   
                    cobieg welcome to the best forum and the greatest bunch of heli freak out there.......ask and you will receive!!! HAPPY & SAFE FLYING!!!  RM54

[cobieg]

roundman54, thanks for the warm welcom, this is a great forum. As for this heli, ( v200d02 ) I am about to give up and put it on the shelf. I tried to fly this morning with no wind, just want to get into a hover, but this thing has a mind of its own. one lift off it will go forward and right, next it will go back and left. stripped another gear and broke a main blade. thinking that if this is a flybarless version of the cb180, then mabey i will replace the rotor head and reciever and make it a flybar version if it will bind with the 2402D transmitter. anybody have any thoughts?

[sjschultz]

Dont give up on the V200, it realy is a great little Heli and lots of fun when you get it dialed in ...
Just try bunny hops and small flights until you have it setup good enough to fly ..
Or get yourself a flight stand to strap it onto for testing so you dont crash it all the time ..

As for the CB180 RX / WK2402 TX ...
Which RX does it have ?
The newest CB180 models come with a WK2402 TX, so if it's one of them I see no reason why it wouldn't be compatible.
But if your RX is an older model, then it may not be.

[cobieg]

I cant afford to get it " dialed in "  with it going out of control so much and stripping gears and such. the reason I bought this is that it is bigger and heaver than my blade 120sr to handle the wind better so that I can move up to a cp. If this radio ( 2402D ) will bind with a rx 2423, then all I need is to change the rotor head with a flybar and change the rx. Then when I get better at this, I can change back to flybarless.

[ROUNDMAN54]

  Don't give up that easy there are people here that will help you along , have patience sometimes it takes time for these guys to get thru all the posts that are put in daily. I'm sure you will get the help here you need , there is alot of posts on this forum that you research but it takes time don't give up on us yet. Happy & SAFE FLYING RM54

[sjschultz]

Maybe there is nothing wrong with the V200 at all ..
Perhaps it's the way your trying to fly it ?
I'm not saying your a bad pilot, but more maybe you need to adjust the way you fly it.

I know it was a big change for me going from one type of Heli to another.
The flight characteristics of a FB Heli are quiet different from a FBL Heli, until you get used to it.
A FBL Heli is much more agile, requiring very small stick inputs, but a much faster reaction time to correct it.
Then you add the 3in1 unit trying to counter your controls at the same time to balance it out and so on.

Put some training gear on the V200, to help counter any roll/flip from rotorwash or overcorrecting stick inputs.
Keep it lower to the ground (1-2ft) until you can hold it in a steady hover.
Don't try to fly it like your a Pro and take it slow and easy.
Trying to rush it will simply result in more spare parts. (I know, I spent $100 or more in spares the 1st month I owned one)

I went through about 10 main gears in a month, but at the same time I ran them down so flat that the motor gear had almost nothing to grip into.
If I had changed them out after every crash, I bet I would have thrown out 30 or more gears.
All I am trying to say is "Dont Give Up" on the V200 .. There are hundreds of reasons as to why you may be having problems ..

As for changing the Head to FB and the other RX ..
This would be a step backwards and would be no different to flying the CB180 ..
On top of that the old RX may not be capable of running the V200 motors (I dont know for sure, I have never looked into the specs)
If they are higher power rating than the RX is rated, you may end up just burning it out.

Again: .. Put Training Gear On It .. Dont Give Up .. Take It Slow ..
1. Turn on TX and set all but Throttle Trim to 50% (Throttle 0%) - Use Dual Rates to cut back stick inputs even further if you want to tame it down more.
2. Sit the V200 on flat level surface and plug in battery.
3. Don't move the V200, or the sticks until it is initialized. (even the slightest movement can throw the 3in1 Gyro out)
4. Throttle up to just before lift of RPM (about 50%) and as it gets light give it more Throttle (70%) to lift off.
5. Do Not move the sticks during Throttle Up / Lift Off. (This can confuse the 3in1 resulting in auto overcorrection)
6. Do Not let the Heli sit on the ground for more than a couple seconds once light on the skids. (again this can confuse the gyro as its not getting the required feedback from auto corrections)
7. Once in the air, keep it low (1-2ft) so that if the Heli is not responding how you want it, you can get it down with much less "doom" happening.

I hope you don't take this post the wrong way ..
I do know how you feal, as I have been there myself ..

Good luck and keep us informed of your progress